Manifold for internal-combustion engines.



W. KNUDSBN. MANIFOLD FOR INTERN-AL GOMBUSTION ENGINES.

\ APPLICATION FILED JUNE 18, 1914.

1,124,916. Patentd Jan. 12, 1915.

/ 5 gwwm WILLIAM KNUDSEN, OF FREMONT, NEBRASKA.

Minnow FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent. Patented Jan, 12, 1915,

Application filed June 18, 1914. Serial No. 845,932.

To all whom it-mug concern:

Be it known that I, WILLIAM KNUnsEN, a citizen of the United States, residing at Fremont, in the county of Dodge and State of Nebraska, have invented certain new and useful Improvements in Manifolds for InternaLCombustion Engines, of which the following is a specification.

- any well known manner.

carbureter which is also constructed n any The present invention relates to internal combustion engines and more particularly to the means for introducing the carbureted mixture into the working Cylinder.

It is frequently desirable to employ kerosene or the like for fuel in an internal combustion engine that is otherwise constructed for. use with gasolene and even when employing thislighter distillate it may be de sirable to condition the mixture by heating, just before admitting it to the -working cylinders.

The primary object of the invention is to provide amanifold for internal combustion' engines whereby the mixture for'combustionin the cylinders isheat-edby means of the waste heat from the exhaust pipe. a

A further object of the invention is to provide means which may be conveniently used in connection with a manifold, as above mentioned, whereby steam may be generated and supplied to the mixture in its travel through the manifold.

To these ends the invention is embodied in the various combinations of parts hereinafter described at length and particularly set forth in the claims.

In the drawing which accompanies this specification, Figure 1 is a side elevation of an engine having a carbureter and manifold embodying the features of the invention; Fig. 2 is a vertical section of the manifold showing the relation of the parts; Fig. 3 is a transverse section on theline 3-3, 2; Fig. 4 is a vertical section on the line 44, F ig. 2; Fig. 5 is a transverse section on the line 55, Fig. 2. V

Referring to the drawings in detail, A, B, and C represent the power cylinders of an internal combustion engine constructed in D represents the well knownmanner. I

1 represents .an' exhaust mamfold havmg exhaust receiving ports 2, 3 and 4 adapte for immediate attachment to the exhaust ports of the-engine.

5 represents a suitable exhaust passage.

6 represents the fuel supply manifold which is inclosed in the exhaust manifold 1 and constructed with a fuel constituent inlet l', and suitable fuel supply ports 8, 9 and so 10 adapted for immediate attachment to the fuel intakeports of the engine. The fuel constituent passage is also constructed with. two branches 7 and 7 each communicating with a portion of a fuel supply manifold 11 .5 intermediate of its three ports.

. It will be observed that both the exhaust outlet and the fuel intake are intermediately located in the combined exhaustand fuel manifolds and that the ports with which they connect are distributed on opposite sides thereof; alsothat the fuel intake com- -municatcs with the fuel delivery ports,

through diverging channels while the internal chamber of the exhaust manifold with which its receiving ports communicate, de-

.even thqugh an odd number of cylinders,

and consequently an odd number ofeach kind of ports be involved in the application of the invention to an engine.

12 represents a water supply pipe which is adapted to supply water to a suitable steam generating chamber 13 located in-the exhaust discharge. passage 5.

14 represents a steam supply pipe which is suitably connected to the steam generating chamber 13 and an injector 15 located in the fuel constituent inlet 7.

16 represents a suitable air controlling inlet in injector relation to the steam supply pipe 14.

17 represents a suitable overflow cock for the generating chamber 13.

I claim v 1. An attachment for internal combustion engines, comprising an exhaust manifold 11 and a fuel manifold combined with and en- =veloped by the exhaust manifold; said exhaustmanifold being constructed with an intermediately disposed exhaust discharge port and exhaust intake ports distributed on opposite sides of the exhaust discharge port; and said fuel manifold being constructed with an intermediately disposed 7 fuel intake and fuel delivery ports distributed on opposite sides of and in communication with said fuel intake: the exhaust manifold also having converging passageways through which it delivers to its discharge port, and said fuel manifold having diverging passages extending from its fuel intake across the converging passages of the exhaust manifold. and leading to the fuel delivery ports.

2. An attachment for internal combustion engines, comprising an exhaust manifold and a fuel manifold combined with and enveloped by the exhaust manifold; said exhaust manifold being constructed with an intermediately disposed exhaust discharge port and exhaust intake ports distributed on oppositesides of the exhaust discharge port;

and said fuel manifold being constructed with an intermediately disposed fuel intake and fuel delivery ports distributed on opposite sides of and in communication with said I fuel intake; the fuel intakeand exhaustdischarge port being diametrically opposite each other and the fuel delivery and exhaust receiving ports, collectively, being sym-- metrically distributed on o'ppositesides of said intake and discharge port.

"i. An attachment; for internal combustion engines, comprising an exhaust manifold and a fuel manifol 1 combined with and enveloped by the exhaust manifold; said ex- .haust manifold being constructed with an mtermediately disposed exhaust discharge port and exhaust intake ports distributed on opposite sides of the exhaust discharge port;

tachment to the fuel intake leave in the former, a free circulating space around the latter, and each fuel assage having, for a portion of its length beyond the converging exhaust channels, one wall coincidentwith the top wall of the exhaust manifold.

a. The combination with the exhaust manifold of an internal combustion en e having exhaust receiving ports adapte for immediate attachment to the exhaust port.

of the engine, and a suitable exhaust passage; of a fuel supply manifold having a suitable fuel constituent inlet and having a fuel supply ports adapted for immediate atports of the engine; said fuel supply manifold being enveloped by said exhaust manifold, and a steam generating chamber --loc.ated in'said exhaust discharge passage and having a steam delivery connection with the fuel supply manifold, and a controllable air inlet in injector relation to said steam sup 1y pipe.

The foregoing specification signe at Fremont Nebr. this 28th day of May, 1914:.

' WILLIAM KNUDSEN. In presence of Fman Harms, F. W. BUTTON. 

